* Download the [heatindex.txt](https://resources.oreilly.com/examples/9780596007126/blob/master/examples/heatindex.txt) file containing the heat index formula for the Weather Station in chapter 2.
* Download the [test.txt](https://resources.oreilly.com/examples/9780596007126/blob/master/examples/test.txt) file for chapter 3.
* If you are using ant to compile the java files, you can download the [build.xml](https://resources.oreilly.com/examples/9780596007126/blob/master/examples/build.txt) file. (Make sure you name this file "build.xml" to use it with ant.)
* Download the code examples in C# here (hosted and supported by [Mark McFadden](http://www.msquaredweb.com/DesignPatterns)).
* Download the code examples in C# [here](https://resources.oreilly.com/examples/9780596007126/blob/master/examples/HeadFirstDesignPatternsInCSharp.zip) (hosted and supported by [Mark McFadden](http://www.msquaredweb.com/DesignPatterns)).
* Download the code examples in C++ here (created and supported by Glenn Puchtel).